Description: Toner cartridge is at the end of life.
Causes: • Gently shake the toner cartridge from side to side and install it again. • Replace the toner cartridge. Harness connection failure of new toner sensor harness ASSY. Harness connection failure of toner sensor PCB unit ASSY. New toner sensor harness ASSY failure (Toner empty) Toner sensor PCB unit ASSY failure. Main PCB failure
Remedy: 1 Harness connection failure of new toner sensor harness ASSY. Check the sensor performance following the procedure described in "Maintenance mode 32". If any problem occurs, check the harness connection of the new toner sensor harness ASSY, then reconnect it. 2 Harness connection failure of toner sensor PCB unit ASSY. Check the sensor performance following the procedure described in "Maintenance mode 32". If any problem occurs, check the harness connection of the toner sensor PCB unit ASSY, then reconnect it. 3 New toner sensor harness ASSY failure (Toner empty) Replace the new toner sensor harness ASSY. 4 Toner sensor PCB unit ASSY failure. Replace the toner sensor PCB unit ASSY. 5 Main PCB failure Replace the main PCB ASSY.
Code: 67
Description: Toner of the toner cartridge is low
Causes: • Prepare a new toner cartridge. If the toner is empty, Replace it.
Remedy:
Code: 68
Description: Fuser unit failure (The side thermistor detects higher temperature than the specified value.)
Causes:
Remedy: 1 Fuser unit harness connection failure Check the harness connection of the fuser unit and reconnect it. 2 Fuser unit failure Replace the fuser unit. 3 LVPS PCB unit failure Replace the LVPS PCB unit. 4 Main PCB failure Replace the main PCB ASSY.
Code: 69
Description: Fuser unit failure (The side thermistor detects lower temperature than the specified value.)
Causes:
Remedy: 1 Fuser unit harness connection failure Check the harness connection of the fuser unit and reconnect it. 2 Fuser unit failure Replace the fuser unit. 3 LVPS PCB unit failure Replace the LVPS PCB unit. 4 Main PCB failure Replace the main PCB ASSY.
Code: 6A
Description: Fuser unit failure (The side thermistor does not detect 60°C within the specified time.)
Causes:
Remedy: 1 Fuser unit harness connection failure Check the harness connection of the fuser unit and reconnect it. 2 Fuser unit failure Replace the fuser unit. 3 LVPS PCB unit failure Replace the LVPS PCB unit. 4 Main PCB failure Replace the main PCB ASSY.
Code: 6B
Description: Fuser unit failure (The center thermistor does not detect 100°C within the specified time.)
Causes:
Remedy: 1 Fuser unit harness connection failure Check the harness connection of the fuser unit and reconnect it. 2 Fuser unit failure Replace the fuser unit. 3 LVPS PCB unit failure Replace the LVPS PCB unit. 4 Main PCB failure Replace the main PCB ASSY.